Has been and have been are both present perfect forms of the irregular verb be. Has been is the form used with a third person singular subject (including the pronouns she, he, and it —but not singular they). Have been is the form used with any other subject (including the pronouns I, we, and they).

‘Has been’ and ‘have been’ suggest an action that started in the past, but continues in the present. When we are talking about the present: If the subject of a sentence is I – You – We – They or a plural noun (cars, birds, children) we use ‘have been‘.

“Has been” means that someone or something was in the act of doing something or in a particular circumstance or location. We use “has been” to indicate something that someone started in the past and finished (perfected) in the recent past or is still ongoing.

"Has been" and "have been" are both in the present perfect tense. "Has been" is used in the third-person singular and "have been" is used for first- and second-person singular and all plural uses. The present perfect tense refers to an action that began at some time in the past and is still in progress.

Was and has been are both used to refer to the past, but they do this in different ways. Was is the past tense of the verb “to be.” Has been is the present perfect continuous tense, combining the auxiliary verb “has” with the past participle of “to be,” which is “been.”